An anti-theft monitoring equipment and an anti-theft monitoring method thereof, and an anti-theft system for a two-wheeler or a tricycle are disclosed. The anti-theft monitoring equipment comprises: a CPU module for controlling an action of each module; a clock module for providing time information to the CPU module; a positioning module for providing positioning information to the CPU module; a vibration sensor module for providing a vibration detection signal to the CPU module when detecting a vibration; a lock control module for monitoring and reporting locking state information to the CPU module, and controlling a lock to be unlocked according to an instruction from the CPU module; a memory for storing the time information and the positioning information; a signal receiving/sending module which may be connected to a wireless network to receive information from external equipment and to provide the information to the CPU module, and sends the time information and the positioning information to the external equipment under the control of the CPU module; and a power supply module for supplying power to each module.

A vehicle anti-theft system for preventing an unauthorized person from stealing a user's vehicle. The vehicle anti-theft system includes a vehicle unit to be installed within a vehicle and a remote unit to be carried by the user. When a user is not utilizing the vehicle, the user can activate the vehicle unit which determines if the vehicle is moving. If the vehicle is moving while the vehicle unit is activated, the vehicle unit's alarm system will produce an audible alert, and the vehicle unit's deactivation unit will disable the vehicle to prevent the unauthorized person from further driving the vehicle. The remote unit is provided to activate and deactivate the vehicle unit and further can be used to remotely trigger the alarm system and the deactivation unit.

A vehicle-compartment abnormality detection apparatus for a vehicle includes a sensor signal processor, a comparator, a determiner, and an abnormality detector. The sensor signal processor receives a sensor signal from pressure sensors disposed inside a vehicle compartment. The comparator compares a sensor signal level with a predetermined threshold. The determiner starts up when a result of comparison indicates that the sensor signal level is greater than the predetermined threshold in a state where the drive system is stopped, and determines at least whether a key is present inside the vehicle compartment. The abnormality detector starts up when the result of comparison indicates that the sensor signal level is greater than the predetermined threshold in the state where the drive system is stopped, and detects an abnormality occurring inside the vehicle compartment when a result of determination indicates that the key is not present inside the compartment.